US3171392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and related apparatus for the cooling plant of internal combustion engines
Assignee: Industrie Magneti Marelli SRL
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Filing: 1963-03-28
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Granted: 1965-03-02
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Expires: 1983-03-28
Abstract
No abstract record available.
Inventors
- 👤 Alfieri Giuseppe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:50
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/14; F01P3/00; F01P3/22; F01P3/2207
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN A COOLING SYSTEM FOR AN INTERNAL COMBUSTION ENGINE WHEREIN THERE IS A CONTINUOUS CIRCULATION OF LIQUID IN A CLOSED COOLING CIRCUIT BETWEEN THE ENGINE TO BE COOLED AND THE RADIATOR AND WHEREIN SAID ENGINE IS CONNECTED WITH AN AIR COMPRESSOR TO PERMIT PLACING SAID LIQUID UNDER PRESSURE, THE COMBINATION COMRISING PRESSURE REDUCING MEANS CONNECTED, ON ONE SIDE, WITH SAID AIR COMPRESSOR AND, ON THE OTHER SIDE, WITH SAID COOLING CIRCUIT AND CHANGE-OVER VALVE MEANS CONNECTING SAID COOLING CIRCUIT EITHER TO SAID AIR COMPRESSOR OR TO THE ATMOSPHERE TO DISCHARGE THE SUPERPRESSURE IN SAID COOLING CIRCUIT WHEN ACCESS IS DESIRED TO SAID INTERNAL COMBUSTION ENGINE FOR ANY REASON.
Claim 2
Dependent Claim
108 words
IN A COOLING SYSTEM FOR AN INTERNAL COMBUSTION ENGINE WHEREIN THERE IS A CONTINUOUS CIRCULATION OF LIQUID IN A CLOSED COOLING CIRCUIT BETWEEN THE ENGINE TO BE COOLED AND THE RADIATOR AND WHEREIN SAID ENGINE IS CONNECTED WITH AN AIR COMPRESSOR TO PERMIT PLACING SAID LIQUID UNDER PRESSURE, THE COMBINATION COMRISING PRESSURE REDUCING MEANS CONNECTED, ON ONE SIDE, WITH SAID AIR COMPRESSOR AND, ON THE OTHER SIDE, WITH SAID COOLING CIRCUIT AND CHANGE-OVER VALVE MEANS CONNECTING SAID COOLING CIRCUIT EITHER TO SAID AIR COMPRESSOR OR TO THE ATMOSPHERE TO DISCHARGE THE SUPERPRESSURE IN SAID COOLING CIRCUIT WHEN ACCESS IS DESIRED TO SAID INTERNAL COMBUSTION ENGINE FOR ANY REASON.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |